Data on this tab is partly taken from the NCM template and partly user-supplied. The rules are as follows.
The NCM activity specifies a minimum ventilation regime for the activity in terms of a flow rate and a profile. This appears as an air exchange of type Auxiliary Ventilation, taken from the NCM template. The NCM minimum ventilation regime applies to all heated and occupied rooms, whether air conditioned, mechanically ventilated or naturally ventilated.
Auxiliary ventilation assigned to the room by the user in other Views (via the room template or room-specific assignments) is automatically removed. This is to avoid a double-specification of minimum ventilation requirements.
Infiltration is also subject to a special treatment in VE Compliance, being derived from permeability and other parameters specified in the Building & System Data dialog.
Further guidance on ventilation settings in VE Compliance simulations is provided in Appendix A.
